2000 Lincoln LS Fuel Pump Relay Location: A Complete Guide for American Owners

The fuel pump relay on a 2000 Lincoln LS is located in the rear power distribution box inside the trunk. It is labeled as Relay 007 and is the only relay that sits by itself in that box. This small but critical component controls the flow of electricity to your fuel pump, and when it fails, your car will crank but not start. Knowing exactly where it is and how to test it can save you time, money, and a lot of frustration.

Understanding the Fuel Pump Relay on a 2000 Lincoln LS

The fuel pump relay acts as a switch that controls power to the fuel pump. When you turn the ignition key to the "ON" position, the engine control module (ECM) sends a signal to the relay, allowing current to flow to the fuel pump. This design ensures the pump only operates when necessary, preventing battery drain and reducing wear on the pump itself. If the relay fails, the pump will not receive power, and your engine will not get the fuel it needs to start.

On a 2000 Lincoln LS, the fuel pump relay is a common point of failure, especially as the vehicle ages. The good news is that it is relatively easy to access and test.

Exact Location of the Fuel Pump Relay

Here is the step-by-step process to find the fuel pump relay on your 2000 Lincoln LS:

1. Open the trunk. Pop the trunk lid and make sure you have good lighting. A flashlight or a shop light will help you see clearly.

2. Locate the rear power distribution box. This box is mounted on the driver's side of the trunk, usually against the rear seat bulkhead or the side wall. It is a black plastic box with a removable cover. The owner's manual for the 2000 Lincoln LS has a diagram of this box on page 182.

3. Remove the cover. The cover typically has a tab or clip that you press to release it. Pull the cover off and set it aside.

4. Identify Relay 007. Look inside the box. You will see a number of relays and fuses. The fuel pump relay is labeled as Relay 007. It is the only relay in the box that is positioned by itself, separate from the other relays. This makes it easy to spot once you know what you are looking for.

5. The relay itself. It is a small, rectangular black or gray component with four or five prongs on the bottom that plug into the socket. You can pull it straight out by hand or use a pair of needle-nose pliers if it is stuck.

Fuel Pump Fuse Location

In addition to the relay, your 2000 Lincoln LS also has a fuel pump fuse. If the relay is good but the pump still does not work, the fuse may be blown.

The fuel pump fuse is located in the Passenger Compartment Fuse Box. To access it:

  • Open the glove box.
  • On the right side of the glove box, you will see a small, black plastic cover.
  • Remove the cover by pulling it straight out.
  • The fuse box is behind the cover.
  • Look for the fuse labeled "FUEL PUMP." It is a 20-amp fuse.

If the fuse is blown, the metal strip inside will be broken. Replace it with a new 20-amp fuse. Important: If the fuse blows repeatedly, you likely have a more serious issue with the fuel pump or the wiring, and you should have the system inspected by a mechanic.

How to Test the Fuel Pump Relay

Before you replace the relay, it is a good idea to test it. Here is a simple method that many owners use:

Swap the relay. The fuel pump relay and the horn relay are the same part number. Find the horn relay in the front power distribution box under the hood. Swap the two relays. If the horn now works with the fuel pump relay installed, the relay is likely good. If the fuel pump still does not work, the problem is elsewhere.

Use a multimeter. If you have a multimeter, you can test the relay for continuity. Set the meter to measure resistance (ohms). With the relay at rest, you should see continuity between the coil terminals. When you apply 12 volts to the coil, you should hear a click and see continuity between the switch terminals. If you do not get these readings, the relay is faulty.

Other Common Causes of a No-Start Condition

If the relay and fuse are both good, but your engine still cranks without starting, there are a few other things to check on your 2000 Lincoln LS:

1. Fuel pump shut-off switch. After a collision, or even a hard bump, the fuel pump shut-off switch may have been activated. This switch is located in the driver's foot well, behind the kick panel. The reset button is accessible through an opening in the kick panel. To reset it, turn the ignition to the OFF position, check for fuel leaks, then push the reset button.

2. Fuel pump driver module. The Lincoln LS uses a fuel pump driver module to send commands to the fuel pump from the vehicle's central computer. This module is located in the trunk, behind the driver-side rear-passenger seat. Pull back the carpeting and look for a black, rectangular box with a wiring harness plugged into the bottom. This module can fail and prevent the pump from running.

3. The fuel pump itself. If the relay, fuse, shut-off switch, and driver module are all good, the fuel pump may have failed. On a 2000 Lincoln LS, the fuel pump is inside the fuel tank. Accessing it requires lowering the tank or cutting an access panel in the trunk floor. A failing pump may still hum but not generate enough pressure to start the engine.

Symptoms of a Bad Fuel Pump Relay

How do you know if the fuel pump relay is the problem? Look for these common signs:

  • Engine cranks but will not start. This is the most common symptom. You turn the key, the starter spins the engine, but it never fires up.
  • No sound from the fuel pump. When you turn the ignition to the "ON" position (but do not start the engine), you should hear a brief humming sound from the rear of the car as the fuel pump primes. If you do not hear this sound, the relay may not be sending power to the pump.
  • Intermittent starting issues. The car may start fine one day and refuse to start the next. This is a classic sign of a failing relay, as the internal contacts may work intermittently.
  • Dead battery after sitting. If the relay gets stuck in the "on" position, the fuel pump will run continuously, even with the engine off. This can drain your battery overnight.

Step-by-Step Troubleshooting Guide

If your 2000 Lincoln LS cranks but will not start, follow this checklist:

  1. Check the fuel pump shut-off switch. Locate it in the driver's foot well and reset it.
  2. Check the fuel pump fuse. Open the passenger compartment fuse box and inspect the 20-amp "FUEL PUMP" fuse.
  3. Check the fuel pump relay. Open the trunk, locate the rear power distribution box, and find Relay 007.
  4. Swap the relay. Swap the fuel pump relay with the horn relay. If the horn works, the relay is fine.
  5. Listen for the pump. Turn the key to the "ON" position and listen for a humming sound from the rear of the car.
  6. Check the fuel pump driver module. If all else fails, inspect the module behind the driver-side rear seat in the trunk.

Why You Should Upgrade to a KEMSO Fuel Pump

If you have diagnosed the problem and determined that your fuel pump itself needs to be replaced, choosing the right replacement is critical. The fuel pump is the heart of your fuel system, and a low-quality pump can leave you stranded or cause damage to other components.

KEMSO Fuel Pumps are designed as direct OEM replacements for a wide range of vehicles, including the 2000 Lincoln LS. Here is why KEMSO is the smart choice for American drivers:

High Performance. KEMSO fuel pumps are engineered to deliver consistent fuel pressure and flow. This ensures your engine runs smoothly under all conditions, whether you are cruising on the highway or idling in traffic. The 340LPH (liters per hour) high-performance models are particularly well-suited for vehicles that demand reliable fuel delivery.

OEM Replacement Quality. Every KEMSO fuel pump is built to match the exact specifications of your original equipment. This means you get a perfect fit and straightforward installation. You do not have to worry about modifying brackets, wiring, or fuel lines. The pump drops right in.

Lifetime Warranty. KEMSO stands behind the quality of their products with a lifetime warranty. If your fuel pump ever fails due to a manufacturing defect, KEMSO will replace it free of charge. This gives you total peace of mind every time you get behind the wheel. In an era where many parts manufacturers offer only a one-year warranty, KEMSO's lifetime guarantee is a breath of fresh air.

Affordable Pricing. Most KEMSO fuel pumps are priced at just $79.98, which is significantly less than what you would pay for an OEM pump at a dealership. For a high-performance, lifetime-warrantied product, this represents outstanding value. You get professional-grade reliability without breaking the bank.

Broad Vehicle Coverage. KEMSO offers fuel pumps for cars, motorcycles, ATVs, UTVs, and even personal watercraft. Whether you drive a Lincoln LS, a Subaru Impreza, a Honda Civic, or a Kawasaki Jet Ski, KEMSO has a fuel pump that fits your application.

To browse the full lineup of KEMSO fuel pumps and find the perfect replacement for your 2000 Lincoln LS, visit their official website: https://www.kemsoracing.com/

Preventive Maintenance Tips

Once you have your fuel system working properly, follow these tips to extend the life of your fuel pump and relay:

  • Keep your fuel tank above a quarter full. The fuel pump relies on the fuel in the tank to stay cool and lubricated. Running the tank low can cause the pump to overheat and wear out faster.
  • Replace the fuel filter every 30,000 miles. A clogged fuel filter puts extra strain on the fuel pump, causing it to work harder and fail sooner.
  • Use high-quality fuel. Cheap or contaminated fuel can damage the fuel pump and injectors. Stick to reputable gas stations.
  • Avoid running out of gas. Running out of fuel can cause the pump to suck in air and debris from the bottom of the tank, which can damage the pump.
  • Listen for warning signs. If you hear a whining noise from the fuel tank, or if the car becomes harder to start over time, have the fuel system inspected before the pump fails completely.

Final Thoughts

The fuel pump relay on a 2000 Lincoln LS is located in the rear power distribution box in the trunk, labeled as Relay 007. It is a simple component that is easy to access and test. If you are experiencing a no-start condition, start by checking the relay, the fuse, and the fuel pump shut-off switch before assuming the pump itself is bad.

If you do need to replace the fuel pump, consider upgrading to a KEMSO Fuel Pump. With high-performance engineering, OEM replacement quality, and a lifetime warranty, KEMSO offers the reliability and peace of mind that every American driver deserves. At just $79.98, it is an investment in your vehicle's long-term health.

For more information and to find the right fuel pump for your 2000 Lincoln LS, visit https://www.kemsoracing.com/ today.


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